Validation of the chronic venous insufficiency quality of life questionnaire in Dutch patients treated for varicose veins.

The Chronic Venous Insufficiency Quality of Life Questionnaire (CIVIQ) is a disease-specific instrument to measure the impact of chronic venous insufficiency (CVI) on patients' lives. The objective of this study is to test the psychometric properties of the CIVIQ, and to validate the use of the questionnaire translated into the Dutch language. A standardised questionnaire, including CIVIQ and Short Form (36) Health Survey (SF-36), was obtained before and 1 month after treatment to all new patients with varicose veins. The feasibility was tested by missing responses and response distribution. CIVIQ scores were compared to the SF-36 scores and between different levels of severity of varicose veins. The CIVIQ's reliability was assessed using Cronbach's alpha and test-retest reliability. The structure was studied using factor analysis. The scores before and after therapy were compared to assess responsiveness. There was a response rate of 93.5%. None of 20 items missed < 10% of responses, but three showed ceiling effect. The CIVIQ correlated well with the physical and moderately with the mental MCS of the SF-36, suggesting a good construct validity of the CIVIQ. The median CIVIQ scores increased significantly with the severity of varicose veins. The CIVIQ showed an excellent internal consistency and an excellent test-retest reliability. The CIVIQ score decreased in 76% of patients after treatment. The results were in accordance with the Norman's rule and showed a median effect size. This study confirms the feasibility, validity, reliability and responsiveness of the CIVIQ in patients with varicose veins. The psychometric properties of the Dutch CIVIQ were comparable to the original French version.

Biemans AA ，van der Velden SK ，Bruijninckx CM ，Buth J ，Nijsten T ... -  《-》

Reliability and validity of the Dutch translated Aberdeen Varicose Vein Questionnaire.

Klem TM ，Sybrandy JE ，Wittens CH ，Essink Bot ML ... -  《-》

Measurement of health-related quality of life with the Dutch translated Aberdeen Varicose Vein Questionnaire before and after treatment.

Klem TM ，Sybrandy JE ，Wittens CH 《-》

Quality of life in chronic venous disease patients measured by short Chronic Venous Disease Quality of Life Questionnaire (CIVIQ-14) in Serbia.

This was a psychometric validation of the short Chronic Venous Disease Quality of Life Questionnaire (CIVIQ-14) as quality of life (QOL) instrument for chronic venous disease (CVD) patients. Patients aged >18 years who had CVD in CEAP C stages C0s to C6 were included in the study. Diagnosis was made by general practitioners according to CVD symptoms and visual examination of the lower extremities. QOL was assessed with the self-administrated CIVIQ-14. The reliability, construct, and convergent validity of the CIVIQ-14 was estimated as well as QOL of CVD patients according to CEAP C stages. The study comprised 2260 subjects who fully completed the CIVIQ-14. CIVIQ-14 had a high level of reliability, construct, and convergent validity, but the structure of its three dimensions (pain [P], physical [PHY], and psychological [PSY]) was suboptimal. After adjustment for age, body mass index, and number of CVD symptoms, CIVIQ -14 global, P, PHY, and PSY scores showed significant progressive reduction of QOL from CEAP class C0s to C6. These differences were present in both sexes. The progressive impairment of the QOL involved primarily the pain and the physical items. For all CEAP C classes, the P and PHY scores were lower than the PSY scores. Global scores for men and women were: 76.7 and 73.9 for C0s; 75.5 and 70.6 for C1; 67.8 and 64.5 for C2; 68.3 and 61.6 for C3; 60.7 and 54.6 for C4; 49.5 and 50.2 for C5; and 41.3 and 46.7 for C6. CVD in the lower extremities has a substantial effect on both physical and psychologic aspects of QOL, the physical aspects of QOL (P and PHY items) being more important. CIVIQ-14 is valuable in assessing QOL in CVD patients. Further investigations are necessary to confirm the stability of its two dimensions.

Radak DJ ，Vlajinac HD ，Marinković JM ，Maksimović MŽ ，Maksimović ZV ... -  《-》

Translation and validation of a quality of life questionnaire for chronic lower limb venous insufficiency into greek.

Erevnidou K ，Launois R ，Katsamouris A ，Lionis C ... -  《-》